EP 1203706 A2 20020508 - Resin piston for master cylinder in brake system, master cylinder, die for molding resin piston for master cylinder, and manufacturing method of resin piston for master cylinder
Title (en)
Resin piston for master cylinder in brake system, master cylinder, die for molding resin piston for master cylinder, and manufacturing method of resin piston for master cylinder
Title (de)
Harzkolben für einen Hauptzylinder in einer Bremsanlage, Hauptzylinder, Form für das Giessen eines Harzkolbens für einen Hauptzylinder und Herstellungsverfahren eines Harzkolbens eines Hauptzylinders
Title (fr)
Piston de résine pour maître-cylindre dans un système de freinage, maître-cylindre, moule pour mouler un piston de résine d'un maitre-cylindre et procédé de fabrication d'un piston de résine d'un maître-cylindre
Publication
Application
Priority
JP 2000334993 A 20001101
Abstract (en)
An upper die and a lower die are combined. A core for molding a concavity and another core are combined with the combined upper die and the lower die at respective prescribed positions. A core for through-hole molding is constructed by the junction of cores that are severally formed with the upper die and the lower die integrally on the extension line of the central axis of the core for molding a concavity. A through-hole is molded with the core for through-hole molding. A concavity in which a valve mechanism is equipped and a communicating hole through which the concavity communicates with the through-hole are molded with the core for molding a concavity. The core for through-hole molding includes an impact hole, in which a tip of the core for molding a concavity is impacted. <IMAGE>
IPC 1-7
IPC 8 full level
B29C 45/00 (2006.01); B29C 45/26 (2006.01); B29C 45/33 (2006.01); B60T 11/16 (2006.01); B29L 31/26 (2006.01)
CPC (source: EP US)
B29C 45/0025 (2013.01 - EP US); B29C 45/2628 (2013.01 - EP US); B29C 45/33 (2013.01 - EP US); B60T 11/16 (2013.01 - EP US); B29L 2031/7494 (2013.01 - EP US)
Citation (applicant)
- JP 2000159088 A 20000613 - BOSCH BRAKING SYS CORP
- JP H0228134 A 19900130 - CHUGAI PHARMACEUTICAL CO LTD
Designated contracting state (EPC)
DE ES FR GB
DOCDB simple family (publication)
EP 1203706 A2 20020508; EP 1203706 A3 20030409; JP 2002137256 A 20020514; JP 3612273 B2 20050119; US 2002050137 A1 20020502; US 6832479 B2 20041221
DOCDB simple family (application)
EP 01126014 A 20011031; JP 2000334993 A 20001101; US 422101 A 20011026